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  1. /*
  2.  * Copyright (c) 2008 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <errno.h>
  30. #include <stdio.h>
  31. #include <stdlib.h>
  32. #include <string.h>
  33. #include <vfs.h>
  34. #include <unistd.h>
  35. #include <fcntl.h>
  36. #include <dirent.h>
  37. #include <sys/types.h>
  38. #include <sys/stat.h>
  39. #include "../tester.h"
  40.  
  41. char text[] = "O xein', angellein Lakedaimoniois hoti teide "
  42.     "keimetha tois keinon rhemasi peithomenoi.";
  43.  
  44. char *test_vfs1(bool quiet)
  45. {
  46.     if (mount("tmpfs", "/", "nulldev0") != EOK)
  47.         return "Mount failed.\n";
  48.  
  49.     if (mkdir("/mydir", 0) != 0)
  50.         return "mkdir() failed.\n";
  51.     if (!quiet)
  52.         printf("Created directory /mydir\n");
  53.    
  54.     int fd0 = open("/mydir/myfile", O_CREAT);
  55.     if (fd0 < 0)
  56.         return "open() failed.\n";
  57.     if (!quiet)
  58.         printf("Created /mydir/myfile, handle=%d\n", fd0);
  59.  
  60.     ssize_t cnt;
  61.     size_t size = sizeof(text);
  62.     cnt = write(fd0, text, size);
  63.     if (cnt < 0)
  64.         return "write() failed.\n";
  65.     if (!quiet)
  66.         printf("Written %d btyes to handle %d.\n", cnt, fd0);
  67.     if (lseek(fd0, 0, SEEK_SET) != 0)
  68.         return "lseek() failed.\n";
  69.  
  70.     DIR *dirp;
  71.     struct dirent *dp;
  72.  
  73.     dirp = opendir("/");
  74.     if (!dirp)
  75.         return "opendir() failed.";
  76.     while ((dp = readdir(dirp)))
  77.         printf("Discovered %s\n", dp->d_name);
  78.     closedir(dirp);
  79.  
  80.     int fd1 = open("/dir1/file1", O_RDONLY);
  81.     int fd2 = open("/dir2/file2", O_RDONLY);
  82.  
  83.     if (fd1 < 0)
  84.         return "open() failed.\n";
  85.     if (fd2 < 0)
  86.         return "open() failed.\n";
  87.  
  88.     if (!quiet)
  89.         printf("Opened file descriptors %d and %d.\n", fd1, fd2);
  90.  
  91.     char buf[10];
  92.  
  93.     cnt = read(fd0, buf, sizeof(buf));
  94.     if (cnt < 0)
  95.         return "read() failed.\n";
  96.  
  97.     if (!quiet)
  98.         printf("Read %d bytes from handle %d: %.*s\n", cnt, fd0, cnt,
  99.             buf);
  100.  
  101.     cnt = read(fd1, buf, sizeof(buf));
  102.     if (cnt < 0)
  103.         return "read() failed.\n";
  104.  
  105.     if (!quiet)
  106.         printf("Read %d bytes from handle %d: %.*s\n", cnt, fd1, cnt,
  107.             buf);
  108.  
  109.     return NULL;
  110. }
  111.  
  112.